Powtran PI9000-S Series - Page 100

Appendix II
96
0006: Invalid parameter changes
0007: System locked
0008: EEPROM in operation
F9
Group - Communication parameter description
F9.00
Baud rate
Default
6005
Setting range
Units digit: MODUBUS baud rate
0: 300BPS
1: 600BPS
2: 1200BPS
3: 2400BPS
4: 4800BPS
5: 9600BPS
6: 19200BPS
7: 38400BPS
8: 57600BPS
9: 115200BPS
This parameter is used to set the data transfer rate between the host computer and the inverter. Note:
the baud rate must be set to the same for the host computer and the inverter, otherwise
communication can not be achieved. The larger baud rate, the faster communication speed.
F9.01
Data format
Default
0
Setting range
0: no parity: data format <8, N, 2>
1: even parity: data format <8, E, 1>
2: odd parity: data format <8, O, 1>
3: no parity: data format <8-N-1>
Note: the set data for the host computer and the inverter must be the same.
F9.02
This unit address
Default
1
Setting range
1 to 247, 0for broadcast address
When the address of this unit is set 0, that is broadcast address, the broadcasting function for the
host computer can be achieved.
The address of this unit has uniqueness (in addition to the broadcast address), which is the basis of
peer-to-peer communication for the host computer and the inverter.
F9.03
Response delay
Default
2ms
Setting range
0 to 20ms
Response delay: it refers to the interval time from the end of the inverter receiving data to the start
of it sending data to the host machine. If the response delay is less than the system processing time,
then the response delay time is subject to the system processing time; If the response delay is
longer than the system processing time, after the system finises the data processing, and continues
to wait until the response delay time, and then sends data to the host computer.
F9.04
Communication
timeout time
Default
0.0 s
Setting range
0.0 s(invalid)
0.1 to 60.0s
Communication time-out parameter is not valid when the function code is set to 0.0s.